Re: [PATCH 9/9] prepare to remove/proc/sys/vm/hugepages_treat_as_movable

[Mel Gorman]

On Fri, Aug 09, 2013 at 01:21:42AM -0400, Naoya Horiguchi wrote:
> Now we have extended hugepage migration and it's opened to many users
> of page migration, which is a good reason to consider hugepage as movable.
> So we can go to the direction to remove this parameter. In order to
> allow userspace to prepare for the removal, let's leave this sysctl handler
> as noop for a while.
> 

Note that this assumes that users interested in memory hot-remove and
hugepages are also willing to resize the hugepage pool on the target nodes
before attempting the hot-remove operation. I guess that technically the
necessary setup steps could be done from userspace or manually by the
system administrator but it may not be obvious to the system
administrator that the step is required.

-- 
Mel Gorman
SUSE Labs
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/